In 2.2 we marked all legacy filters and locations as deprecated (see MDL-29995 and release notes). And in 2.3 support for them has been dropped (see MDL-29996).

So now it's safe to improve the filters plugin type to start using proper component names here and there. This issue is about to collect and perform the needed changes.

Note that while it was originally planned for 2.4 (see comment @ MDL-27961) it's highly possible to do it for 2.3 (once MDL-29996 has been done), so I'm pointing to it as target.

Ciao